Littelfuse, Inc.
POLYMERIC POSITIVE TEMPERATURE COEFFICIENT (PPTC) BODIES AND DEVICES MADE THEREFROM

Abstract:

Polymeric positive temperature coefficient (PPTC) bodies and fuse devices formed therefrom are described. In various embodiments, the PPTC bodies comprise a matrix polymer and a conductive filler comprising a compound of general formula M.sub.n+1AX.sub.n, where M is a transition d metal element, A is a p-block element, X is carbon or nitrogen, and n is 1, 2 or 3.